• Introduction
      • Arduino
      • Pre-Requisites for Arduino
      • Types of Arduino
      • A Simple Introduction to Raspberry Pi
      • Arduino Vs Raspberry Pi
    • Installation
      • Getting started
      • Arduino Software Interface
    • PIN Details
      • What are Arduino Pins
      • How do We Use Arduino Pins?
    • Electrical Components
      • Electrical Components
      • Basic Idea about Current, Voltage and Resistances
      • Electrical Components to learn
      • Connectors
      • Types of Sensors
    • Programming
      • Programming the Arduino
      • Data Types
      • Variables
    • Operators
      • Operators
    • LED-Blinking
      • Blinking LED
      • Steps to prepare the project
      • Edit the Code in the IDE
      • Verify the Sketch
      • Upload the code
      • FAQ
    • Fading LED
      • Fading LED with Arduino
      • Concept of PWM(Pulse Width Modulation)
      • Requirements
      • Steps to prepare the project
      • FAQ
    • LED-Blinking
      • Blinking LED
      • Steps to prepare the project
      • Edit the Code in the IDE
      • Verify the Sketch
      • Upload the code
      • FAQ
    • Temperature Sensor
      • Temperature Sensor
      • Humdity And Temperature in Serial Monitor
      • Humidity & Temperature in LCD Display
    • Ultrasonic Sensor
      • Ultrasonic Sensor
      • Working of the Temperature Sensor
      • PIN Connections
      • Project-Distance based temperature Sensing
      • Run the Project:
    • Accelerometer
      • Accelerometer
      • Applications of accelerometer:
      • Details of the Accelerometer: ADXL345
      • Pin Connections
    • Servo Motor
      • Servo Motor
      • Different Types of Servo Motors:
      • Servo with Arduino
      • FAQ
    • RFID
      • RFID
      • Applications of RFID
      • RFID with Arduino (RC522 Module)
    • Joystick
      • Joystick
      • Joystick with Arduino
      • Project- Control a servo motor using a Joystick
    • Keyboard
      • Matrix Keyboard
      • Matrix Keyboard with Arduino:
      • Project-Servo motor with unique Key
      • FAQ
    • Seven Segment Display
      • Seven Segment Display
      • Seven Segment Display with Arduino
    • Relay
      • Relay
    • Counter
      • Counter
      • Counters in Arduino
    • Motor
      • Motor
      • DC Motor with Arduino
    • jbjb
      • Selenium Custom Locator
      • Explore Not So familiar Locators in Selenium Webdriver
      • ByIdOrName Locator in Selenium
      • ByChained locator in selenium
      • ByAll Locator in selenium
    • m_add_start-555-->

      FAQ

      Why have we used the 220-ohm Resistor?

      The Arduino Digital PINS (PIN 8 in our case) will give an output of 5 volts. Now, there can be an LED whose operating voltage is 2 Volts (any lower than 5 volts), in that case, the LED may burn out.

      So, we have used the resistor to supply less voltage to the LED.

      Can the project be done without using the Bread Board?

      Yes. But, it is always a good practice to use the Bread Board, so that you get used to with complicated projects.

      Can we use a different color LED?

      Of course Yes!

      Why Digital Pins are used?

      Since we require either HIGH or LOW voltage for Blinking LED Project.

      Which Arduino Board is recommended?

      Any Arduino Board you can use.

      Can I use any GND Pin available on the Arduino Board?

      Yes!

      Can I connect a DC motor in the place of the LED?

      You can, but you should not. The DC motor has very low resistance and it will try to draw more current from the Arduino Board and may burn the Arduino itself.

      To use any component which requires more current, different hardware device drivers are used.

      Recommended Readings
      • Fading LED with Arduino
      • Arduino Tutorials
      • Arduino Operators
      • Arduino Programming
      • Electrical Components
      • Arduino PIN Details

      Comment / Suggestion Section
      Point our Mistakes and Post Your Suggestions

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